On Tue, Jul 09, 2013 at 02:20:43PM +0200, Victor fernandez wrote: > Hi EveryBody! > > recently, we have tested some specific High Energy Physics benchmarks that > was running over S.L.6 and we observed that the performance over AMD > machines was really bad, about 30-40% lost. We were investigating > and we conclude that the problem was with some cpu flags. These cpu > flags are important for running our application because it is optimazed > for running with them. So, we tuning our KVM with the name of flags > parameters and with "-cpu host" parameter too, but > we observed that the flags that we needed, they weren't included when > we started the S.L.6 instance. We try to solve it, but when we conclude > that the specific flags weren't included in the code of the last > versions of KVM > and LibVirt(capabilities). Do you know something about this problem or > you are aware of this? > What flags are missing? -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html